|
2#

楼主 |
发表于 2009-5-14 09:43:54
|
只看该作者
Why do I think this? Because I helped create these derivatives. I'm an American from Texas who worked for about a decade for international banks and law firms. Derivatives experts sought me out because I'm a lawyer with a degree in mathematics. I spent thousands of hours in Hong Kong skyscrapers translating the calculations and cash flows into arcane, legal English. And I eventually figured out how the banks -- and, I must admit, myself -- could profit by selling products their customers didn't fully understand.
The basic concept behind derivatives is simple. They are financial agreements in which one party agrees to pay another party if a market goes up or down. For example, imagine an airline that buys jet fuel. The airline could face trouble if the price of oil shoots up. To protect itself, the airline can buy a derivative -- a hedge -- that will pay money if the price of oil rises. Of course, if the price of oil drops, then the airline would lose money on its hedge. But, on the other hand, it would also pay less for fuel. You could think of this sort of derivative as a type of insurance.
But in China, the profit margins on simple and safe derivatives fell too far for foreign banks. A couple of years ago, after they sold all the derivatives they could to large Chinese banks and state-owned enterprises, investment banks then targeted smaller Chinese firms. These firms had less money, so the only way for the banks to maintain their profit levels was to make derivatives more complex and risky. My job was to write them.
Many small Chinese companies had taken out loans and wanted to protect themselves against changes in interest rates. A simple hedge would have worked fine. Instead, the banks sold complex derivatives called "cost reduction swaps" that were linked to such obscure factors as differences in euro interest rates. When the credit crunch hit Europe, Chinese clients suddenly had to pay millions of dollars to their investment bankers. |
|